Bildung von Cyclopentenylverbindungen beim Metathese‐Abbau von modifiziertem 1,4‐Polybutadien
1980; Wiley; Volume: 181; Issue: 9 Linguagem: Inglês
10.1002/macp.1980.021810907
ISSN0025-116X
AutoresKlaus Hummel, Peter Heiling, Christos Karaoulis, Wolfgang Kathan, Franz Stelzer,
Tópico(s)biodegradable polymer synthesis and properties
ResumoAbstract This investigation deals with metathesis degradation products of modified 1,4‐polybutadiene (poly(1‐butenylene)) which have not been taken into consideration as yet, e.g. substituted cyclopentene and linear isomerization products. Substituents were introduced into 1,4‐poly‐butadiene either by partial bromination with N ‐bromosuccinimide followed by a Grignard‐Wurtz reaction or by reaction with the corresponding methyl compound and dicumyl peroxide. Polymers with 2‐methylbenzyl, 4‐methylbenzyl, 4‐chlorobenzyl, 4‐methoxybenzyl, 2‐naphthylmethyl, 2,4,6‐trimethylphenyl, 1‐naphthyl, 9‐anthryl, and 9‐phenanthryl substituents were degraded by metathesis with 4‐octene using WCl 6 /(CH 3 ) 4 Sn as a catalyst and were analyzed by gas chromatography/mass spectrometry and by liquid chromatography.
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